$OpenBSD: patch-lib_libsystem_c,v 1.2 2011/03/26 15:43:18 naddy Exp $
--- lib/libsystem.c.orig	Fri Mar 25 22:12:34 2011
+++ lib/libsystem.c	Fri Mar 25 22:12:42 2011
@@ -12,7 +12,7 @@
 
    Contributed to the public domain.
 =============================================================================*/
-#define _XOPEN_SOURCE
+/*#define _XOPEN_SOURCE*/
 
 #include <unistd.h>
 #include <stdlib.h>
